Changes

In addition, there are certain trains in Thailand that are free for Thai passengers (for example, the trains going from [[Udon Thani]] to [[Bangkok]], and from [[Surat Thani]] to [[Hat Yai]]), and it is also possible to get onto them for free as a tourist. If you attract the attention of the train station officers, they might insist that you pay the tourist price for the ticket, but if you just get into the train no-one should bother you there. The hardest part is finding out which are these trains exactly and when they come without asking the train station officers, but the locals can probably help you with that.

=== Hitchhiking in Thailand ===